Home / 4,675.90-7,013.80-1,389.02

Finding the Fourth Proportional to 4,675.90, 7,013.80 and 1,389.02

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Solution

The fourth proportional to 4,675.90, 7,013.80 and 1,389.02 is: 2,083.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,675.90 : 7,013.80 = 1,389.02 : x
  2. Step 2: Convert to fraction form
    4,675.90/7,013.80 = 1,389.02/x
  3. Step 3: Cross multiply
    4,675.90x = 7,013.80 × 1,389.02
  4. Step 4: Simplify right side
    4,675.90x = 9,742,308.48
  5. Step 5: Solve for x
    x = 9,742,308.48/4,675.90
  6. Step 6: Final answer
    x = 2,083.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.